3 papers
math.AT2023
The stable Picard group of finite Adams Hopf algebroids with an application to the -motivic Steenrod subalgebra
Xu Gao, Ang Li
In this paper, we investigate the rigidity of the stable comodule category of a specific class of Hopf algebroids known as finite Adams, shedding light on its Picard group. Then we…
math.NT2022
Simplicial volumes in Bruhat-Tits buildings of split classical type
Xu Gao
In a Bruhat-Tits building of split classical type (that is, of type , , , , and any combination of them) over a local field, the simplicial volume counts the ve…
math.NT2013
Finding normal bases over finite fields with prescribed trace self-orthogonal relations
Xiyong Zhang, Rongquan Feng, Qunying Liao +1
Normal bases and self-dual normal bases over finite fields have been found to be very useful in many fast arithmetic computations. It is well-known that there exists a self-dual no…